Compare Avg Price, Speech to Text, license, and release date. Search any speech-to-text model with the pickers below.
Claude Sonnet 4.5
Anthropic
$3.00
Universal-3.5 Pro
AssemblyAI
N/A
Claude Sonnet 4.5 currently shows the lower Avg Price: $3.00 vs N/A for Universal-3.5 Pro. That is the public Anthropic speech-to-text API pricing versus AssemblyAI speech-to-text API pricing. Duration, resolution, and voice settings can still flip the invoice.
Universal-3.5 Pro currently leads on Speech to Text: -424 for Claude Sonnet 4.5 vs 98.1 for Universal-3.5 Pro. Rank and price move independently, so the cheaper speech-to-text model is not automatically the weaker one.
Claude Sonnet 4.5 is proprietary (Proprietary). Universal-3.5 Pro is proprietary (Proprietary). Open-weight models can be self-hosted; proprietary ones are billed only through the provider API on this page.
Use the model pickers at the top of this page. Search any speech-to-text model in the index and the URL updates to a new comparison, the same way LLM comparison pages work. Open either model from the sidebar for the single-model Avg Price page.
This comparison uses public llm-stats and ZeroEval arena data for speech-to-text models, then normalizes Avg Price, Speech to Text, license, and release date inside AnotherWrapper. Treat the numbers as comparable public list rates, not a quote from either vendor.
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